Chevrolet is hoping to energize sales of the 2012 Volt plug-in hybrid with a new low-emission model, one that can be driven solo in California's carpool lanes. Sales of the Volt have not met GM's expectations and many experts have singled out the Volt's high price (a base model starts at $39,995, before federal and state incentives), along with an investigation by the NHTSA into a series of post-accident battery fires, as the culprits. Production of the Volt was halted temporarily until the federal investigation determined the car posed no more risk in an accident than a conventional vehicle.

This low emission Volt finally gives Chevrolet something new and positive to talk about regarding its much-hyped economy champ. Electric driving range remains at 35 miles, at which point a small gas-powered engine kicks in to provide additional driving range. All Volts sold in California will come equipped with a Low Emissions Package, and the system is available elsewhere as a no-cost option. The package is related to software reprogramming to reduce emissions – performance and range are not impacted.

Having access to California's highly coveted carpool lanes could be a boost for Volt sales, especially in a state where massive traffic snarls are as much a part of everyday life assunshine and surfing. According to GM, the averageSouthern California driver saves 36 minutes each day when using carpool lanes. California Volt buyers will also be eligible for a $1,500 state rebate, in addition to clean vehicle federal tax credits that can total $7,500. Low emission Volts registered in Georgia, New York and Florida also are eligible for single occupancy access to carpool lanes.